The density of particles in a planet's rings can be measured using
A) infrared light.
B) the Doppler shift.
C) background stars.
D) proper motions.

Name: The density of particles in a planet's rings can be measured using A) infrared light. B) the Doppler shift. C) background stars. D) proper motions.
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Question

Quizplus · Accepted Answer

The density of particles in a planet's rings can be measured by observing how the rings block or dim the light from background stars as they pass in front of them.

The Density of Particles in a Planet's Rings Can Be